Shows which parts of the world are in daylight, which are in twilight, and which are in darkness. The position of the sun (projected on to the Earth) is also shown as a yellow circle.
Various locations around the world can be selected, and the date and time can be changed. For the currently selected location and the current date and time, information such as the number of daylight hours and sunrise/sunset times are shown in a panel on the right-hand side.
It is also possible to choose a "globe" view of the Earth, rather than the default "map" view, using the "View Mode" selector. In either mode, the map can be animated to show the passage of light and shadow across the surface of the Earth over time. The speed can be selected using the slider labelled "Time Step". In addition, if "globe" view is selected, there is an additional slider to control how quickly the view of the Earth rotates.
The program makes some approximations; do not rely on the results to be totally accurate, they are intended as a guide only. In addition, I believe the globe view in particular may not be a true representation.
Daylight World Map ©1998-2012 Steve Pugh, SPWebGames.